Physics, 28.02.2020 19:05 yolo123321

When monochromatic light passes through the interface between two unknown materials at an angle θ where 0∘<θ<90∘, no changes in the direction of propagation of light are observed. What can be said about the two materials?

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When monochromatic light passes through the interface between two unknown materials at an angle θ wh...

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